SRNE 5500W 48V 230V Solar Hybrid Inverter

1. Introduction

The SRNE HES series is a new type of solar hybrid inverter, designed to integrate solar energy storage, mains charging, and AC sine-wave output. It is controlled by a Digital Signal Processor (DSP), offering high response speed, reliability, and industrial standard performance through advanced control algorithms.

This inverter features four distinct charging modes: solar only, mains priority, solar power priority, and solar hybrid. Additionally, it provides two output modes, inverter and Mains Power, to cater to diverse application requirements.

The solar charging module incorporates the latest optimized Maximum Power Point Tracking (MPPT) technology, ensuring efficient tracking of the PV array's MPP in any environmental condition, thereby maximizing energy harvest from solar panels in real-time. It boasts a wide MPPT voltage range.

The AC-DC charging module utilizes a state-of-the-art control algorithm for full digital double closed-loop control of voltage and current, resulting in high control precision and a compact size. It supports a wide AC voltage input range and includes comprehensive I/O protection functions for stable and reliable battery charging and protection.

The DC-AC inverter module is built on an all-digital intelligent design, employing advanced SPWM technology to output a pure sine wave. This allows for efficient conversion of DC to AC, making it suitable for various AC loads such as household appliances, electric tools, industrial equipment, and electronic audio/video devices. The product features a sectional LCD display that provides real-time system data and operational status. Its comprehensive electronic protection functions ensure the overall safety and stability of the system.

Important Note: The correct battery capacity for your system should be determined based on the specific load requirements and application scenarios. Incorrect sizing can lead to insufficient battery capacity or wasted power generation. Please refer to the manual's recommendations or consult with customer service for detailed guidance.

2. Key Features

2.1 Functional Characteristics:

• Sectional charging and discharging function: Allows enabling/disabling AC charging based on set charging times and switching power supply modes (inverter/AC bypass) based on set discharge times.
• Anti-counter-current grid-connected function (PV and mains hybrid power supply).
• Insulation impedance and leakage current detection function.
• Supports operation without a battery under special conditions.
• Double activation function for lithium batteries, triggered by connecting mains or PV power.
• ECO mode for reducing no-load loss.
• Four charging modes: solar only, Mains Power first, solar first, and hybrid charging.
• Two output modes: Mains Power bypass and inverter output, with uninterrupted power supply capability.
• Multiple 360° omni-directional protection functions.
• Supports lead-acid and lithium battery access.
• ON/OFF switch controls the inverter AC output.
• PV Grid-connected power generation mode can be set.
• Full digital voltage and current double closed-loop control, state-of-the-art SPWM technology, and pure sine wave output.
• Advanced MPPT technology with efficiency up to 99.9%.
• LCD screen design with 3 LED indicator lights for dynamic display of system data and running status.
• Intelligent adjustable speed fan for efficient heat dissipation and extended system life.
• Complete short circuit protection, over-voltage and under-voltage protection, overload protection, and backfeed protection.

2.2 Design Characteristics:

• Full-digital double closed-loop control combined with advanced SPWM technology and pure sine wave output.
• Advanced MPPT technology with an efficiency of 99.9%.
• LCD screen and three LED indicator lights clearly indicate status and data.
• Intelligent and variable-speed fan efficiently dissipates heat and extends system life.
• Multiple safety protection functions: short circuit protection, overload protection, reverse polarity protection, and more.

3. Package Contents

Upon opening the package, please verify that all items are present and in good condition. The standard package includes:

• SRNE 5500W Solar Hybrid Inverter (Model: HES4855S100-H)
• User Manual (this document)
• Optional: Wi-Fi Module (if purchased with the Wi-Fi variant)

4. Product Overview

Familiarize yourself with the components and interfaces of your SRNE Solar Hybrid Inverter.

4.1 Component Identification:

Communication Ports (CAN, USB, RS485) are standard. The inverter also features a reinforced waterproof port and a large heat sink with low-speed fans for efficient cooling.

5. Installation

5.1 System Connection Diagram:

The following diagram illustrates a typical connection setup for the SRNE Solar Hybrid Inverter. Ensure all connections are made securely and according to local electrical codes.

5.2 Wi-Fi Module Installation (Optional):

If your inverter includes a Wi-Fi module, follow these steps for installation and setup:

1. Wi-Fi Plug07 Installation:
   • Align the interface of the Wi-Fi Plug07 with the inverter and plug it in firmly.
   • Confirm the status of the LED indicator. A green LED light indicates normal working status.
2. Wireless Router Connection:
   • Download the SmartESS app by scanning the provided QR codes for Android or iOS.
   • Open the app and tap the "Wi-Fi Config" button to enter the configuration page.
   • Tap the "Network Setting" button.
   • After the Wi-Fi Plug07 restarts, reconnect your phone's Wi-Fi to the Wi-Fi network created by the plug (default password: 12345678).
3. Create Account and Datalogger:
   • Create Account: Open the SmartESS app, tap the "Register" button, and complete the required information to create your account.
   • Add Datalogger: Log in to your account, click the list button on the homepage, then tap the "+" button in the top-right corner. Scan the datalogger PN (QR code) on the Wi-Fi Plug07 or input it manually. Follow the prompts to finish adding the datalogger.

6. Operation

6.1 Powering On/Off:

Use the ON/OFF switch (Component ⑩ in Figure 4.2) to control the inverter's AC output. Ensure all connections are secure before powering on.

6.2 Charging Modes:

The inverter supports four charging modes, which can be configured via the LCD screen or the SmartESS app:

• Solar Only: Prioritizes solar power for charging.
• Mains Priority: Prioritizes grid power for charging.
• Solar Power Priority: Uses solar power first, then supplements with mains if needed.
• Solar Hybrid: Combines solar and mains power for optimal charging.

6.3 Output Modes:

Two output modes are available:

• Mains Power Bypass: Directly supplies power from the grid to loads.
• Inverter Output: Converts DC power from batteries/solar to AC power for loads.

The inverter provides uninterrupted power supply during transitions between these modes.

6.4 Grid-Connected Operation:

The PV Grid-connected power generation mode can be configured to feed excess solar power back into the utility grid, subject to local regulations and utility approval.

6.5 ECO Mode:

Activate ECO mode to reduce no-load power consumption, enhancing overall system efficiency.

6.6 Monitoring:

The LCD screen (Component ⑯ in Figure 4.1) and the SmartESS app provide dynamic, real-time display of system data and running status, including input/output voltages, currents, power, and battery status.

7. Maintenance

To ensure optimal performance and longevity of your SRNE Solar Hybrid Inverter, regular maintenance is recommended:

• Cleaning: Keep the inverter's exterior clean and free from dust. Use a soft, dry cloth. Do not use liquid cleaners.
• Ventilation: Ensure that the cooling fans and ventilation openings are not obstructed. Proper airflow is crucial for heat dissipation.
• Connections: Periodically check all electrical connections (PV, battery, AC input/output) to ensure they are tight and free from corrosion.
• Environmental Conditions: While the inverter has an IP65 waterproof rating, protecting it from direct prolonged exposure to extreme weather conditions will extend its lifespan.
• Firmware Updates: Check the manufacturer's website or the SmartESS app for any available firmware updates to ensure your inverter operates with the latest features and improvements.

8. Troubleshooting

If you encounter issues with your inverter, refer to the following general troubleshooting steps. For specific error codes or persistent problems, consult the detailed troubleshooting section in the full manual (if available) or contact technical support.

• No Power Output: Check the ON/OFF switch, AC input breaker, battery connections, and PV input. Verify that the LCD screen is displaying information.
• Low Power Output: Ensure solar panels are clean and not shaded. Check battery charge level and health. Verify load requirements are within the inverter's rated capacity.
• Error Indicators: The inverter's LCD screen and indicator lights will display error codes or warnings. Refer to the specific error code definitions in the comprehensive manual for diagnosis.
• Communication Issues (Wi-Fi): Ensure the Wi-Fi module is correctly installed and its LED is green. Check your router's connection and verify the SmartESS app settings.
• Overload Protection: If an overload occurs, the inverter will typically shut down. Reduce the connected load and restart the inverter.
• Battery Issues: Ensure the battery type setting in the inverter matches your connected battery (Lead-acid or Lithium). Check battery voltage and connections. The inverter has a double activation function for lithium batteries if they are deeply discharged.

The inverter is equipped with multiple protection functions including short circuit, over-voltage, under-voltage, overload, and backfeed protection to safeguard the system.

9. User Tips

• Battery Sizing: Always ensure your battery bank capacity is appropriately matched to your load and application. An undersized battery can lead to frequent discharge cycles and reduced lifespan, while an oversized one might be an unnecessary expense.
• Battery-Free Operation: This inverter supports working without a battery under specific conditions. Consult the detailed manual for configuration and limitations of this feature.
• Remote Monitoring: If you have the Wi-Fi module, utilize the SmartESS app for convenient remote monitoring and control of your inverter's performance and settings.
• Grid-Tie Configuration: Explore the grid-connected mode settings to potentially feed excess solar energy back to the grid, optimizing your energy usage and potentially reducing electricity bills.

10. Specifications

11. Warranty and Support

The SRNE HES4855S100-H Solar Hybrid Inverter comes with a 5-year warranty period from the date of purchase.

For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact SRNE customer support or your authorized dealer. Ensure you have your product model number (HES4855S100-H) and purchase details ready when contacting support.

12. Product Video Overview

Watch this video for a visual overview of the SRNE Solar Hybrid Inverter's features and design.